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Part Number: AD2S99
Description: The AD2S99 programmable sinusoidal oscillator provides sine wave excitation for resolvers and a wide v...
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AD2S99
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DataSheet
General Description
AD2S99 General Description
The AD2S99 programmable sinusoidal oscillator provides sine wave excitation for resolvers and a wide variety of ac transducers.
The AD2S99 also provides a synchronous reference output signal (3 V p-p square wave) that is phase locked to its SIN and COS inputs. In an application, the SIN and COS inputs are connected to the transducer's secondary windings.
The synchronous reference output compensates for temperature and cabling dependent phase shifts and eliminates the need for external preset phase compensation circuits. The synchronous reference output can be used as a zero crossing reference for resolver-to-digital converters such as Analog Devices' AD2S80A, AD2S82A, AD2S83 and AD2S90.
The AD2S99 is packaged in a 20-pin PLCC and operates over 40°C to +85°C.
AD2S99 Maximum Ratings
VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V
Operating Temperature . . . . . . . . . . . . . . . . 40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . 65°C to +150°C
Analog Input Voltages (SIN and COS) . . . . . . . . . VSS 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to VDD + 0.3 V
Frequency Select (SEL1, SEL2) . . . . . . . . . . . . . . VSS 0.4 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to AGND + 0.4 V
VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V
Operating Temperature . . . . . . . . . . . . . . . . 40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . 65°C to +150°C
Analog Input Voltages (SIN and COS) . . . . . . . . . VSS 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to VDD + 0.3 V
Frequency Select (SEL1, SEL2) . . . . . . . . . . . . . . VSS 0.4 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to AGND + 0.4 V
AD2S99 Features
`Programmable Sinusoidal Oscillator
`Synthesized Synchronous Reference Output
`Programmable Output Frequency Range: 2 kHz20 kHz
`"Loss-of-Signal" Indicator
`20-Pin PLCC Package
`Low Cost
`Synthesized Synchronous Reference Output
`Programmable Output Frequency Range: 2 kHz20 kHz
`"Loss-of-Signal" Indicator
`20-Pin PLCC Package
`Low Cost
AD2S99 Typical Application
·Excitation Source for:
·Resolvers
·Synchros
·LVDTs
·RVDTs
·Pressure Transducers
·Load Cells
·AC Bridges
·Resolvers
·Synchros
·LVDTs
·RVDTs
·Pressure Transducers
·Load Cells
·AC Bridges
AD2S99 Connection Diagram
AD2S99
PDF/DataSheet Download
- Datasheet: AD2S99
- File Size: 325170 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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AD2S99 Relative Products
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The AD2S93 is a complete 14-bit resolution tracking LVDT-todigital converter. A Type II tracking loop is employed to track the AB input and produce a digital output equal to (AB)/ (REF/2), where REF is a fixed amplitude ac reference phase coherent with the A...
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